mc9s08qe4 Freescale Semiconductor, Inc, mc9s08qe4 Datasheet - Page 17

• Manufacturer Part Number: mc9s08qe4
• Description: 8-bit Hcs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

3.9
Freescale Semiconductor
Num
1
2
3
4
5
6
7
C
C
C
P
P Internal reference frequency — user trimmed
T Internal reference start-up time
P DCO output frequency range — trimmed
P DCO output frequency
Internal Clock Source (ICS) Characteristics
at V
Reference = 32768 Hz and DMX32 = 1
Resolution of trimmed DCO output frequency at fixed voltage and
temperature (using FTRIM)
Resolution of trimmed DCO output frequency at fixed voltage and
temperature (not using FTRIM)
Figure 11. Typical Crystal or Resonator Circuit: High Range and Low Range/High Gain
Average internal reference frequency — factory trimmed
Table 10. ICS Frequency Specifications (Temperature Range = –40 to 85qC Ambient)
DD
= 3.6 V and temperature = 25qC
Figure 12. Typical Crystal or Resonator Circuit: Low Range/Low Power
2
Characteristic
C
1
EXTAL
EXTAL
Subject to Change Without Notice
MC9S08QE8 Series, Rev. 3
2
Crystal or Resonator
Crystal or Resonator
Preliminary
XOSCVLP
XOSCVLP
R
F
XTAL
XTAL
f
'f
'f
dco_DMX32
Symbol
dco_res_t
dco_res_t
f
f
f
t
R
dco_u
int_ut
IRST
int_ft
S
C
2
31.25
Min.
48
—
—
—
—
—
Electrical Characteristics
Typical
32.768
59.77
r0.1
r0.2
60
—
—
1
39.06
Max.
r0.2
r0.4
100
60
—
—
%f
%f
MHz
MHz
Unit
kHz
kHz
Ps
dco
dco
17